Auckland's West Coast communities have been hit hard by Cyclone Gabrielle overnight

Residents of two roads in coastal Muriwai were told to evacuate about one-am after a landslip blocked Motutara Road.

Fire and Emergency has confirmed two homes have collapsed.

Our newsroom understands one firefighter is unaccounted for.

Auckland Transport says flooding on Seaview Road and Piha Road in Piha have caused the area to be blocked off, along with the beachside area of Karekare.

Multiple residnets on Dale Road in Ramarama, South Auckland were rescued overnight as flood waters hit.

Fifty apartments in Mount Eden have been evacuated during the night due to fears the historic Colonial Ammunition Company Shot Tower might collapse.

Thousands are still without power.

Fire and Emergency logged 55 storm related incidents in one hour from three to four am -12 in Auckland.

Auckland motorways are open, including the Harbour Bridge with reduced lanes.